Hello I am still trying to filter a signal. I had another problem but them solved. Firstly I am using ADC delsig after I am sending them to Digital Filter Block via DMA. My question is about ADC delsig output is signed integer. When I send them to filter to DMA, my signal get 2's complement form because DMA block allow to send 32bit unsigned integer . To solve them I add 1V DC offset from signal generator to test the code . My question is that can I solve it to another method because there would be problem to measure the my real signal. Anyone has an experience about that.

My problem is due to DMA channels which send data from ADC delsig to Filter block. It's passing trought signed bit(adcdelsig) to unsigned bit(dma). A signal which is positive sign is not problem but converting negative sign become problem for me. I want to solve this.